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Table 1 Resistance rates (%) of E. faecalis (E.fa) and E. faecium (E.fm) to antimicrobial agents during 2015 to 2017

From: Epidemiology and risk factors of methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci infections in Zhejiang China from 2015 to 2017

Antimicrobial agent 2015 2016 2017 P value
E.fa(n = 9109) E.fm (n = 7106) E.fa(n = 10,740) E.fm(n = 9135) E.fa (n = 11,860) E.fm (n = 10,379) E.fa E.fm
Ampicillin 5.72 88.22 4.66 89.58 3.04 89.13 0.021 < 0.001
Nitrofurantoin 3.95 51.90 3.19 54.96 2.56 55.47 < 0.001 < 0.001
Gentamicin-High 7.32 34.15 18.06 41.57 41.67 41.67 < 0.001 < 0.001
Ciprofloxacin 22.54 89.13 23.14 90.47 22.05 90.32 0.009 0.147
Linezolid 3.17 1.15 2.97 1.00 2.73 0.67 0.002 0.168
Tetracycline 77.29 38.33 76.90 33.75 76.32 30.77 < 0.001 0.243
Tigecycline 0 0 0 0 0 0 / /
Teicoplanin 0 0.51 0 0.45 0 0.16 / < 0.001
Vancomycin 0.67 1.69 0.37 1.22 0.42 0.90 < 0.001 0.006
Levofloxacin 20.78 87.49 20.43 89.04 19.79 88.47 0.009 0.195
  1. / No comparison when appearing resistance rate was 0%